Percolator dome



Sept. 6, 1932. o. OLSEN 1,875,648

PERCOLATOR DOME Filed Jan. 15, 1951 Patented Sept. 6, 1932 PATENT OFFICE? OSCAR. OLSEN, OF BROOKLYN, NEW YORK IPERCOLATCR noME Application filed January 15, 1931. Serial N0. 508,8 52.

My invention relates to glass domes for percolators or other such vessels that may use the same, and more especially to means for preventing the same from accidentally or Otherwise becoming d'etached by falling out of the cover. An object of my invention is to provide the usual annulus or percolator cover with a glass spreading dome that must be inserted in said cover from the underside; said spreader part of the dome will'fit snugly the openingin the cover, while the outwardly extending flange on its lower edge of the dome Will completely close said opening.

My prime object is to provide a new, yet simple, inexpensive and efi'ective means for applying and locking a glass spreader dome in position in the cover of the vessel, and yet be able to insert or detach the glass dome from the vessel without trouble.

The glass dome is provided with an extending flange at its lower side that fits and is held against the underside of the cover by one or more points or other suitable spaced projections extending from the outer face of the dome. When the glass dome is inserted from the underside of the cover, the dome is given a slight twist or turn, which causes the pins and the flange on the dome to clamp tightly the flange on said cover member.

Another object of my invention is to provide a glass dome that may be applied to any percolator; it matters not in which position the flange on the cover may be, it will hold secure and under no circumstances can the dome ever drop out from the cover.

The invention will be better understood from the following description, taken in connection with the accompanying drawing, wherein is shown what is now considered the preferred form. While the drawing illustrates only an example of means for putting my invention into practice, its scope will be pointed out in the specification and in the appended claims.

Further objects and advantages will be come apparent as the description of the invention is hereinafter developed.

In the drawing, Fig. 1 isa side view of my improved glass dome; Fig. 2 is a vertical sectional View of the upper part of a percolator, showing the glass dome in position; Fig. 3 is a partial-like view showing themetal flange in a reverse position to that shownin Fig. 2; Fig. 4 is a partial top plan view of the annulus orcover of the form shown in Fig. 2, showing the cavity for the locking pin to enter before being turned to lockthe dome in positionin the cover. All glass domes known to applicant for percolators are inserted in the cover from the top by forcing it down through the central opening in the cover. The two small projections and the depending vertical flange of these domes are relied upon to hold said dome to the cover. The dome, by frequent handling, is more or less knocked or battered about and in time, by the frequent placing and replacing of the dome in the cover, the

mouth of the opening in the cover becomes so battered that it no longer holds the dome s ecurely. It has been known to. drop out, or,

at an inopportune time, to burn the user, or to break some of the china that is being used.

My invention is to obviate and eliminate this condition of personal and other dangers as has been noted, and as will be more amplified in the following description.

Referring particularly to Fig.1, wherein is shown my improved glass spreading dome 10, having an outwardly extendingflange 11, at its lowermost part, while at a suitabledistance above the same is located a plurality of projecting points 12. Suitably located above these points are a number of outwardly projecting corrugated extensions 13 that act as a gripping means for applying or removing the dome from the cover should the same be desired. On the upper face of the flange 11 a may be arranged slightly rounded upwardly projecting studs 14, which maybe adapted to rest into suitable nicks in the flange 15 n the cover, as willbe pointed out further on in the description. i

My glass dome is made so as to'be applied to those percolators now on the market, that is to say,-to those percolators having the usual downwardly extending flange 15, before re ferred to on thecover 16, as shown in Fig. 2. In thisform, an opening 17 is provided in that part 18 that may extend, showing the top and the flange 15 depressed soas to let the point 12 pass, so that as it reaches the upper part, the dome is slightly twisted or turned to lock the dome in position. The flange holds the underside of the cover, while the pins 12 hold said flange 15 secure between the parts 11 and 12 of the dome.

The lower edge of the flange 15 of the part 16 may be provided with a plurality of nicks 19, so as to house the projecting studs. 14: to hold the glass dome firmly in position. Again, as shown in Fig. 3, wherein the flange 15 of the cover is in the reverse position to that shown in Fig. 2, it will be'understood that the projections on the glass dome will act in the same way, the only difference being that the nicks will be provided inthe part 18 to receive and house securely the studs 14, which in .all cases holds the glass dome in proper position and prevents movement of the dome in thecover. Since thepoints 12 and the studs 14 are equally spaced apart, as the dome is placed in the cover and given its slight turning movement, it will bring one of the studs 14 into the opening 17 while the others will rest in theinrespective nicks 19, and

thereby hold the two members from movement p It will be noted that my improved glass dome is such as may be applied to any percolator now in use, aswell as for the one vfor which it was designed. The dome, as willbe noted, cannot in any way fall out of the cover 16 and cause damage to the person or to the china that may be used, as has been noted. By reason of the dome being applied from the inside of the cover, there is no possible way for the dome to become detached from the cover of the percolator or 'other vessel to r which it may be applied.

While I have herein described the form of my invention as at. present preferred and which I consider represents the best embodiment of all designs made by me, yet I desire to have it understood that various modifications'maybe made and that the invention may be carried out in other ways than that shown and described, for instance, in other vessels than percolators, any and all such are intended to come within the scope of the claims.

What I claim as new'and desire to secure by Letters Patent is: a

1. A percolator top comprising a metal cover having a central flanged opening and a dome insertible into said cover from the under side only,'a flange on said dome adapted to encompass the opening in said cover, means above said flange for holding the latter against the metal cover adjacent said openside including aflange on the lower edge of the dome and extending outwardly therefrom, projecting means on said dome adapted to co-operate with said flange to hold the dome in place in a cover, studs on said flange adapted to prevent displacement of the dome, and ineans for grapsing the dome.

1. A percolator comprising a cover having a central flanged opening therein, a glass dome adapted tobe inserted from the underside and extending through said opening, a flange on the lower edge of said dome adapted to close saidopening, spaced means on said dome for clamping the flange on the cover between said means and the dome flange, nicks and niches for housing means for holdingsaid dome-in position, and means for grapsing the said dome.

Signed at Brooklyn in the county of Kings and State of New York this 13th day of J anuary A. D. 1931. a

v OSCAR OLSEN.

ing, and means for preventing accidental displacement of said dome.

' 2. A percolator including a cover having a flanged opening, a percolator dome adapted I 

